Calibration/compensation polynomial - where to apply

[disquoveri]

Hi. I'm pretty new to LabView so please excuse my inexperience. I calibrated four thermocouples using a reference thermomister and created each a polynomial curve equation to compensate for the error/difference between the four thermocouples and the reference thermomister. How do I apply these polynomials to the program? Is there an article or example available? I tried searching but not getting a lot of luck.Maybe I'm using the wrong keywords?

Thank you in advance.

- Vivian

[JGar]

typically I create an ini text file where all the calibration coefficients are stored.  In my program I read this ini file and place all the values in a cluster that gets passed around in the program to be used.  Another option would be to take the calibration cluster and put it into a global variable.  Now when you read a value from your thermocouple you pull the appropriate calibration values and calculate what the real value is.

As an example:

y = mx + b

m -> slope calibration value

b ->  offset calibration value

You would have to do this calculation for every data point that you want to record.

Hopefully this helps some.

[disquoveri]

Thank you, JGar! I'll look into that.